jc-biz-components/lib/jc-_utils/storage.js

jc component library based on Antd

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
var storage = { version: '1.3.17' };

storage.has = function (key) {
  return storage.get(key) !== undefined;
};

storage.transact = function (key, defaultVal, transactionFn) {
  var val = '';

  if (transactionFn === null) {
    transactionFn = defaultVal;
    defaultVal = null;
  }
  if (defaultVal === null) {
    defaultVal = {};
  }
  val = storage.get(key, defaultVal);
  transactionFn(val);
  storage.set(key, val);
};

storage.serialize = function (value) {
  return JSON.stringify(value);
};
storage.deserialize = function (value) {
  if (typeof value !== 'string') {
    return undefined;
  }
  try {
    return JSON.parse(value);
  } catch (e) {
    return value || undefined;
  }
};

storage.set = function (key, val) {
  if (val === undefined) {
    return storage.remove(key);
  }
  localStorage.setItem(key, storage.serialize(val));
  return val;
};
storage.get = function (key, defaultVal) {
  var val = storage.deserialize(localStorage.getItem(key));

  return val === undefined ? defaultVal : val;
};
storage.remove = function (key) {
  return localStorage.removeItem(key);
};
storage.clear = function () {
  return localStorage.clear();
};
storage.getAll = function () {
  var ret = {};

  storage.forEach(function (key, val) {
    ret[key] = val;
  });
  return ret;
};
storage.forEach = function (callback) {
  var i = 0;
  var key = '';

  for (i = 0; i < localStorage.length; i++) {
    key = localStorage.key(i);
    callback(key, storage.get(key));
  }
};

exports['default'] = storage;
module.exports = exports['default'];